/*
     This file is part of Advanced Strategic Command; http://www.asc-hq.de
     Copyright (C) 1994-2010  Martin Bickel  and  Marc Schellenberger
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.
 
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
     along with this program; see the file COPYING. If not, write to the 
     Free Software Foundation, Inc., 59 Temple Place, Suite 330, 
     Boston, MA  02111-1307  USA
*/


#ifndef ChangeDiplomaticStateH
#define ChangeDiplomaticStateH

#include "command.h"
#include "../player.h"


//! cancels the research on the current technology, losing all research points
class ChangeDiplomaticState : public GameAction {
   private:
      
      int fromPlayer;
      int towardsPlayer;
      int queued;
      int oldState; 
      DiplomaticStates newState; 
      
      
      ChangeDiplomaticState( GameMap* map ) : GameAction( map ) {};
      template<class Child> friend GameAction* GameActionCreator( GameMap* map);
      
   protected:
      
      GameActionID getID() const;
      ASCString getDescription() const;
      
      ActionResult runAction ( const Context& context ); 
      
      void readData ( tnstream& stream );
      void writeData ( tnstream& stream ) const;
      
      ActionResult undoAction( const Context& context );
      
   public:
      /**
      \param queue : 0 = no queue, -1 = remove entry from queue , +1 = add entry tro queue
      */
      ChangeDiplomaticState( Player& fromplayer, Player& towardsPlayer, int queue, DiplomaticStates newState );
      
      ASCString getCommandString() const ;
      
};


#endif

